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Old 08-17-2002, 05:40 AM   #1
Diversion
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Default Greddy FMIC verses Blitz FMIC...

Knowing that the Greddy is typically $100 cheaper in price over the Blitz, which FMIC performs better, even though i'm asking a completely USELESS question since NOBODY has any dyno number for maybe 2% of the total performance parts out on the WRX.

But which kit has a bigger core? I guess that will be the turning point to which kit is higher performing.

Jay
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Old 08-17-2002, 11:03 PM   #2
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Bump, someone would of had to research this in a least. I don't know where to find the core sizes, any clues?

Jay
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Old 08-18-2002, 01:26 AM   #3
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Default fmic

Quote:
Originally posted by Diversion
Bump, someone would of had to research this in a least. I don't know where to find the core sizes, any clues?

Jay
hi
the core off the greddy as well as the blitz is 600*240*76
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Old 08-18-2002, 01:52 AM   #4
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bump
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Old 08-18-2002, 01:53 AM   #5
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The cores are not the same size. The Blitz one has 2 more rows than the GReddy core. I had the pics comparing the two somewhere. I will try to find them.

-Alex
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Old 08-18-2002, 02:48 AM   #6
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Do you think 2 more rows is worth an extra $100??

Do either the Greddy or Blitz kit already have a flange for a BOV?

Jay
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Old 08-18-2002, 02:51 AM   #7
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I know the greddy doesn't, u have to get some one to weld a flange. and its aluminum so don't go trying to weld steel on it

-=melo
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Old 08-18-2002, 05:26 AM   #8
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well if your gonna spend that much money for the intercooler, why not just drop another 100 for the bigger one
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Old 08-18-2002, 07:18 AM   #9
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AFAIK neither one is that great... Both are 2 row. The Greddy that Alex has is the spec R which isn't sold here. There's like a spec V and a spec R. I'm not sure what the exact differeces are but maybe one is a 2 row and one is a 3 row? Or different fin design...
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Old 08-18-2002, 11:43 AM   #10
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alright here we go:

the greddy core is smaller than the blitz core and they both have the same design of a tube fin. heres where everyone should be concerned. the blitz has about 3 feet of piping extra as it goes under the engine and the greddy over the engine. ( lag ) Both do not have blow off valve mounts. on the greddy, the driver side piping goes to the throttle body and it is opposite on the blitz. personally if you dont want to do any modifications to make the blitz work the best than get the greddy.


i am making a kit for the blitz that routes the tubing from the turbo over the engine, then straight down and then to the intercooler. that should make the blitz all around better, because of the short piping and the increased core size.
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Old 08-18-2002, 12:04 PM   #11
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What turbo are you running? If you have a smaller turbo get the Greddy FMIC because it won't take as long to fill the pipes as it would if you had the Blitz FMIC. This in turn will equal less lag for you. I run the Blitz but I have an 1820 so my turbo is big enough to fill the Blitz pipes perfectly. My buddies and I just installed a Greddy FMIC yesterday.
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Old 08-18-2002, 12:17 PM   #12
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the 2 extra rows are not significant to noticed extra lag. you maybe would see 20 rpm increase from those rows.
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Old 08-18-2002, 01:05 PM   #13
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Yes, they are both 2 rows, but I mean that the Blitz one is taller by 2 whatever they are. Rows? I honetsly don't think it matters, because they are tucked in behind the bumper anyways.

GReddy now has both R-SPL and V-SPL FMICs available in the US.

I prefer GReddy. The piping is much nicer and larger. Also, the piping allows you to do the fliparoo of the manifold with less headache.

-Alex
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Old 08-18-2002, 01:41 PM   #14
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Rows means how thick they are... have you ever seen a 4 row IC on a skyline
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Old 08-18-2002, 02:00 PM   #15
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So how do you call what I was talking about? Tubes? 2 extra tubes? LOL.

I know row means thickness, but those are also rows, hehe.

-Alex
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Old 08-18-2002, 03:32 PM   #16
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I would go with the GReddy as the piping is shorter and the pipe from the turbo to IC is thinner than the IC to TB one allowing for less drag.

I still think the GReddy would be a great one for the VF-22 to 34 as long as you don't go above 22psi, then the Sper-R would be better.

Bottom line is here in Puerto Rico, ANY FMIC is better than a TMIC!

Leo
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Old 08-18-2002, 05:15 PM   #17
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So then in comparison, what is the power bandwidth of an MRT FMIC compared to a Greddy?

Jay
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Old 08-18-2002, 05:54 PM   #18
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i read somewhere that greddy fmic v-spec is not efficient over 18psi of boost. does that apply to vf23 also? or just for bigger turbo such as pe1820?
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Old 08-21-2002, 12:05 PM   #19
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Default Re: fmic

Quote:
Originally posted by KOBIR

hi
the core off the greddy as well as the blitz is 600*240*76
Can anyone confirm the core size?

What size piping do the different brands use? I'm looking into making my own, so this would be very helpful.

TIA, -C
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Old 08-21-2002, 12:21 PM   #20
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Yeah...someone throw the MRT FMIC in this argument !!

Ryan ?
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Old 08-21-2002, 01:01 PM   #21
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I have a Blitz and have handled a GReddy. The Blitz goes up to the top of the bumper whereas the GReddy doesn't quite as much (small difference in a relatively low effect area). The endtanks are better on the Blitz.
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Old 08-21-2002, 01:11 PM   #22
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Why haven't you considered the APEXi FMIC ?







anyone can get this for the GC8 WRX ?
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Old 08-21-2002, 02:10 PM   #23
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the Blitz core is slightly bigger, but tio be honest, the Blitz piping is hideous IMHO, so we opt for the Greddy. Fit and finish are excellent as well BTW.

MRT is also a nice option too..I ahve the dims someplace on that one as well.

The Apex'i is only for a GC8....we have sold them before, but it does not fit a GDA without modifications.

The bigger core in this case doesn't buy you anything...both will handle up to around a PE1820 turbo with ease. Bigger than that, and you would be better off making your own FMIC using a Spearco/Griffen core and HKS, etc. endtanks, and custom piping.

WRThis had the right idea....size your IC to your turbo and you won't be disappointed!

Adam
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Old 08-21-2002, 03:22 PM   #24
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Adam, what was your impression of the Apexi unit, for a road/race track car ?
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Old 08-21-2002, 06:09 PM   #25
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I don't think IC's are efficient or not based on pressure... the pressure loss across them has more to do with the flow rate that the larger turbos are capable of because they are relatively efficient at higher pressure ratios compared to the TD04.

Therefore, the Greddy V spec IC might be fine at 18psi from a TD04 but would bluntly suck if you try to use it with one of the large Garrett or APS turbos that are becoming more common at the same pressure because you're cramming more air through it.

Alex, I think I would just call that extra height

where's my bumper beam? hehe
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